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#!/usr/bin/env python
# Copyright (C) 2022 The Qt Company Ltd.
# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
'''Test cases for virtual methods.'''
import gc
import os
import sys
import unittest
from pathlib import Path
sys.path.append(os.fspath(Path(__file__).resolve().parents[1]))
from shiboken_paths import init_paths
init_paths()
from sample import Point, Str, StrList, VirtualDaughter, VirtualMethods
import warnings
class ExtendedVirtualMethods(VirtualMethods):
def __init__(self):
VirtualMethods.__init__(self)
self.virtual_method0_called = False
def virtualMethod0(self, pt, val, cpx, b):
self.virtual_method0_called = True
return VirtualMethods.virtualMethod0(self, pt, val, cpx, b) * -1.0
def strListToStdList(self, arg):
warnings.simplefilter('error')
# returning wrong type for test purposes.
return True
def recursionOnModifiedVirtual(self, arg):
# check if recursion is caused by injected code that calls C++.
return VirtualMethods.recursionOnModifiedVirtual(self, arg) + 10
class ExtendedVirtualDaughter(VirtualDaughter):
def __init__(self, name):
VirtualDaughter.__init__(self, name)
self.grand_daughter_name_called = False
def name(self):
self.grand_daughter_name_called = True
return VirtualDaughter.name(self).prepend('Extended')
class ExtendedExtendedVirtualDaughter(ExtendedVirtualDaughter):
def __init__(self, name):
ExtendedVirtualDaughter.__init__(self, name)
self.grand_grand_daughter_name_called = False
def name(self):
self.grand_grand_daughter_name_called = True
return ExtendedVirtualDaughter.name(self).prepend('Extended')
class VirtualMethodsTest(unittest.TestCase):
'''Test case for virtual methods'''
def setUp(self):
self.prefix_from_codeinjection = Str('Pimped')
def tearDown(self):
del self.prefix_from_codeinjection
# PYSIDE-535: Need to collect garbage in PyPy to trigger deletion
gc.collect()
def testReimplementedVirtualMethod0(self):
'''Test Python override of a virtual method with various different parameters
is correctly called from C++.'''
vm = VirtualMethods()
evm = ExtendedVirtualMethods()
pt = Point(1.1, 2.2)
val = 4
cpx = complex(3.3, 4.4)
b = True
result0 = vm.callVirtualMethod0(pt, val, cpx, b)
result1 = evm.callVirtualMethod0(pt, val, cpx, b)
self.assertEqual(result0 * -1.0, result1)
def testRecursionOnModifiedVirtual(self):
evm = ExtendedVirtualMethods()
self.assertEqual(evm.recursionOnModifiedVirtual(''), 10)
self.assertEqual(evm.callRecursionOnModifiedVirtual(''), 10)
def testReimplementedVirtualMethodInheritedFromGrandParent(self):
'''Test Python override of a virtual method inherited from a grand parent.'''
original_name = 'Foo'
evd = ExtendedVirtualDaughter(original_name)
self.assertEqual(VirtualDaughter.name(evd), original_name)
self.assertEqual(VirtualMethods.name(evd), original_name)
self.assertFalse(evd.grand_daughter_name_called)
name = evd.callName()
self.assertTrue(evd.grand_daughter_name_called)
self.assertEqual(evd.name().prepend(self.prefix_from_codeinjection), name)
def testReimplementedVirtualMethodInheritedFromGrandGrandParent(self):
'''Test Python override of a virtual method inherited from a grand grand parent.'''
original_name = 'Foo'
eevd = ExtendedExtendedVirtualDaughter(original_name)
self.assertEqual(VirtualDaughter.name(eevd), original_name)
self.assertEqual(VirtualMethods.name(eevd), original_name)
self.assertFalse(eevd.grand_daughter_name_called)
self.assertFalse(eevd.grand_grand_daughter_name_called)
name = eevd.callName()
self.assertTrue(eevd.grand_daughter_name_called)
self.assertTrue(eevd.grand_grand_daughter_name_called)
self.assertEqual(eevd.name().prepend(self.prefix_from_codeinjection), name)
def testStringView(self):
virtual_methods = VirtualMethods()
self.assertEqual(virtual_methods.stringViewLength('bla'), 3)
class PrettyErrorMessageTest(unittest.TestCase):
def testIt(self):
obj = ExtendedVirtualMethods()
self.assertRaises(RuntimeWarning, obj.callStrListToStdList, StrList())
if __name__ == '__main__':
unittest.main()
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